linux-kernel - [tip:sched/core] sched: Fix the sched group node allocation for SD

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Date:	Tue, 6 Dec 2011 01:51:55 -0800
From:	tip-bot for Suresh Siddha <suresh.b.siddha@...el.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	a.p.zijlstra@...llo.nl, suresh.b.siddha@...el.com,
	tglx@...utronix.de, mingo@...e.hu
Subject: [tip:sched/core] sched: Fix the sched group node allocation for SD_OVERLAP domains

Commit-ID:  4d78a2239e393f09e0964a2f8da394cc91d75155
Gitweb:     http://git.kernel.org/tip/4d78a2239e393f09e0964a2f8da394cc91d75155
Author:     Suresh Siddha <suresh.b.siddha@...el.com>
AuthorDate: Fri, 18 Nov 2011 15:03:29 -0800
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Tue, 6 Dec 2011 09:06:26 +0100

sched: Fix the sched group node allocation for SD_OVERLAP domains

For the SD_OVERLAP domain, sched_groups for each CPU's sched_domain are
privately allocated and not shared with any other cpu. So the
sched group allocation should come from the cpu's node for which
SD_OVERLAP sched domain is being setup.

Signed-off-by: Suresh Siddha <suresh.b.siddha@...el.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/20111118230554.164910950@sbsiddha-desk.sc.intel.com
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 kernel/sched/core.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index db313c3..07f1e99 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5885,7 +5885,7 @@ build_overlap_sched_groups(struct sched_domain *sd, int cpu)
 			continue;
 
 		sg = kzalloc_node(sizeof(struct sched_group) + cpumask_size(),
-				GFP_KERNEL, cpu_to_node(i));
+				GFP_KERNEL, cpu_to_node(cpu));
 
 		if (!sg)
 			goto fail;
--
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